69 加法 40 等于多少？
69 + 40 = 109
69加法40 等于 109
竖式演算
验算
- 用减法验算：109 − 40 = 69
- 用减法验算：109 − 69 = 40
相关题目
69 + 39 = 108
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69 + 43 = 112
69 + 44 = 113
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68 + 40 = 108
70 + 40 = 110
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10 + 99 = 109
11 + 98 = 109
12 + 97 = 109
13 + 96 = 109
14 + 95 = 109
7 + 14 = 21
37 + 27 = 64
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16 + 42 = 58
42 + 18 = 60